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參數資料
| 型號： | DSD1793DBR |
| 元件分類： | DAC |
| 英文描述： | 24 BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER |
| 中文描述： | 24位192千赫采樣高級分段音頻立體聲數模轉換器 |
| 文件頁數： | 39/47頁 |
| 文件大?。?/td> | 428K |
| 代理商： | DSD1793DBR |
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DSD1793
SLES075A MARCH 2003 REVISED JANUARY 2004
www.ti.com
44
CONSIDERATIONS FOR APPLICATION CIRCUITS
PCB Layout Guidelines
A typical PCB floor plan for the DSD1793 is shown in Figure 49. A ground plane is recommended, with the analog
and digital sections being isolated from one another using a split or cut in the circuit board. The DSD1793 must be
oriented with the digital I/O pins facing the ground plane split/cut to allow for short, direct connections to the digital
audio interface and control signals originating from the digital section of the board. Separate power supplies are
recommended for the digital and analog sections of the board. This prevents the switching noise present on the digital
supply from contaminating the analog power supply and degrading the dynamic performance of the D/A converters.
In cases where a common 5-V supply would be used for the analog and digital sections, an inductance (RF choke,
ferrite bead) must be placed between the analog and digital 5-V supply connections to avoid coupling of the digital
switching noise into the analog circuitry. Figure 50 shows the recommended approach for single-supply applications.
Digital Logic
and
Audio
Processor
Digital Power
+VD
DGND
Digital Section
Analog Section
Return Path for Digital Signals
Analog Power
+VS
AGND
VS
+5VA
Digital
Ground
Analog
Ground
Output
Circuits
DSD1793
AGND
VCC
VDD
DGND
REG
Figure 49. Recommended PCB Layout
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DSD1793DBRG4 | 功能描述:音頻數/模轉換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| DSD1794 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STRRO DIGITAL-TO-ALALOG CONVERTER |
| DSD1794A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-BIT,192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-TO-ANALOG CONVERTER |
| DSD1794ADB | 功能描述:音頻數/模轉換器 IC 24B 192 kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| DSD1794ADBG4 | 功能描述:音頻數/模轉換器 IC 24B 192 kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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